johntalbott wroteCREATE Ticket FOR EACH NUMBER BETWEEN 1 AND TicketBuyer.Nbr_Tickets
with a slight refinement (assuming you want the tickets individually numbering)
CREATE Ticket FOR EACH NUMBER BETWEEN 1 AND TicketBuyer.Nbr_Tickets WITH Ticket.number = system setting.TicketSequenceNumber
RULE IN Ticket
IF Ticket IS NEW INCREASE systemsetting.TicketSequenceNumber by 1